Eastern Technical Associates provides public visible emissions certification programs in Cheyenne and Lander. Choose a Wyoming smoke school location below to learn more about class and field locations, lecture information, fees, and agenda.

ETA’s comprehensive Method 9 classroom lecture is also available in online format. Attendees can access web-based training and participate in the session from the convenience of their office or home.


Wyoming smoke school

March 5-6, 2025

Lander, WY Smoke School

Lecture Information

  • Held once per week on Mondays
  • Start time: 9:00 am EST/ 8:00 am CT/ 7:00 am MT/ 6:00 am PT
  • Held virtually via live webinar using Go To Meeting
  • Lecture will be a separate registration from the field. To register for a lecture, visit our lecture webinar page

Field Information

  • Wednesday & Thursday, March 5 & 6, 2025
  • 8:00 am Registration & 8:30 am Start
  • Wyoming DEQ Office
    Parking Lot
    510 Meadowview Drive
    Lander, WY 82520

More Details Register Now

April 16-17, 2025

Cheyenne, WY Smoke School

Lecture Information

  • Held once per week on Mondays
  • Start time: 9:00 am EST/ 8:00 am CT/ 7:00 am MT/ 6:00 am PT
  • Held virtually via live webinar using Go To Meeting
  • Lecture will be a separate registration from the field. To register for a lecture, visit our lecture webinar page

Field Information

  • Wednesday & Thursday, April 16 & 17, 2025
  • 8:00 am Registration & 8:30 am Start
  • Cheyenne Frontier Days
    Parking Lot C (next to Old West Museum)
    4610 Carey Avenue
    Cheyenne, WY 82001

More Details


Contact Us Today To Learn More About WY Smoke School Programs

Eastern Technical Associates is the smoke school Wyomingites trust for Method 9 opacity certification. Give us a call today at (919) 878-3188 to speak with a visible emissions expert.